/*

 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.io.File;

import java.nio.charset.Charset;

import java.nio.file.Files;

import java.util.ArrayList;

import java.util.List;

import static java.nio.file.StandardOpenOption.*;

import java.util.regex.Pattern;

/*

 * @test

 * @bug 8003549

 * @summary tests class files instruction formats introduced in JSR-335

 * @compile -XDignore.symbol.file Utils.java InstructionTests.java

 * @run main InstructionTests

 * @author ksrini

 */

public class InstructionTests {

    public static void main(String... args) throws Exception {

        testInvokeOpCodes();

    }

    /*

     * the following should produce invokestatic and invokespecial

     * on InterfaceMethodRefs vs. MethodRefs, packer/unpacker should work

     */

    static void testInvokeOpCodes() throws Exception {

        List<String> scratch = new ArrayList<>();

        final String fname = "A";

        String javaFileName = fname + Utils.JAVA_FILE_EXT;

        scratch.add("interface IntIterator {");

        scratch.add("    default void forEach(){}");

        scratch.add("    static void next() {}");

        scratch.add("}");

        scratch.add("class A implements IntIterator {");

        scratch.add("public void forEach(Object o){");

        scratch.add("IntIterator.super.forEach();");

        scratch.add("IntIterator.next();");

        scratch.add("}");

        scratch.add("}");

        File cwd = new File(".");

        File javaFile = new File(cwd, javaFileName);

        Files.write(javaFile.toPath(), scratch, Charset.defaultCharset(),

                CREATE, TRUNCATE_EXISTING);

        // make sure we have -g so that we  compare LVT and LNT entries

        Utils.compiler("-g", javaFile.getName());

        // jar the file up

        File testjarFile = new File(cwd, "test" + Utils.JAR_FILE_EXT);

        Utils.jar("cvf", testjarFile.getName(), ".");

        // pack using --repack

        File outjarFile = new File(cwd, "out" + Utils.JAR_FILE_EXT);

        scratch.clear();

        scratch.add(Utils.getPack200Cmd());

        scratch.add("-J-ea");

        scratch.add("-J-esa");

        scratch.add("--repack");

        scratch.add(outjarFile.getName());

        scratch.add(testjarFile.getName());

        List<String> output = Utils.runExec(scratch);

        // TODO remove this when we get bc escapes working correctly

        // this test anyhow would  fail  at that time

        findString("WARNING: Passing.*" + fname + Utils.CLASS_FILE_EXT,

                        output);

        Utils.doCompareVerify(testjarFile, outjarFile);

    }

    static boolean findString(String str, List<String> list) {

        Pattern p = Pattern.compile(str);

        for (String x : list) {

            if (p.matcher(x).matches())

                return true;

        }

        throw new RuntimeException("Error: " + str + " not found in output");

    }

}